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lightning-sunbird  0.9+nobinonly
cairo-region.c
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00001 /* cairo - a vector graphics library with display and print output
00002  *
00003  * Copyright © 2005 Red Hat, Inc.
00004  *
00005  * This library is free software; you can redistribute it and/or
00006  * modify it either under the terms of the GNU Lesser General Public
00007  * License version 2.1 as published by the Free Software Foundation
00008  * (the "LGPL") or, at your option, under the terms of the Mozilla
00009  * Public License Version 1.1 (the "MPL"). If you do not alter this
00010  * notice, a recipient may use your version of this file under either
00011  * the MPL or the LGPL.
00012  *
00013  * You should have received a copy of the LGPL along with this library
00014  * in the file COPYING-LGPL-2.1; if not, write to the Free Software
00015  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
00016  * You should have received a copy of the MPL along with this library
00017  * in the file COPYING-MPL-1.1
00018  *
00019  * The contents of this file are subject to the Mozilla Public License
00020  * Version 1.1 (the "License"); you may not use this file except in
00021  * compliance with the License. You may obtain a copy of the License at
00022  * http://www.mozilla.org/MPL/
00023  *
00024  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
00025  * OF ANY KIND, either express or implied. See the LGPL or the MPL for
00026  * the specific language governing rights and limitations.
00027  *
00028  * The Original Code is the cairo graphics library.
00029  *
00030  * The Initial Developer of the Original Code is Red Hat, Inc.
00031  *
00032  * Contributor(s):
00033  *     Owen Taylor <otaylor@redhat.com>
00034  */
00035 
00036 #include <cairoint.h>
00037 
00048 pixman_region16_t *
00049 _cairo_region_create_from_rectangle (cairo_rectangle_t *rect)
00050 {
00051     /* We can't use pixman_region_create_simple(), because it doesn't
00052      * have an error return
00053      */
00054     pixman_region16_t *region = pixman_region_create ();
00055     if (pixman_region_union_rect (region, region,
00056                               rect->x, rect->y,
00057                               rect->width, rect->height) != PIXMAN_REGION_STATUS_SUCCESS) {
00058        pixman_region_destroy (region);
00059        return NULL;
00060     }
00061     
00062     return region;
00063 }
00064 
00072 void
00073 _cairo_region_extents_rectangle (pixman_region16_t *region,
00074                              cairo_rectangle_t *rect)
00075 {
00076     pixman_box16_t *region_extents = pixman_region_extents (region);
00077 
00078     rect->x = region_extents->x1;
00079     rect->y = region_extents->y1;
00080     rect->width = region_extents->x2 - region_extents->x1;
00081     rect->height = region_extents->y2 - region_extents->y1;
00082 }
00083